PHP Curl用于对输出原始数据的api进行回显签名

这是我的代码

<?php //if ( ! defined('BASEPATH')) exit('No direct script access allowed');
require_once APPPATH."/libraries/REST_Controller.php";
require_once APPPATH."/libraries/echosign.php";
class Document_management extends Rest_Controller
{
  public function get_access_token_get()
  {    
    $echoSign = new EchoSign();
    $ch = curl_init('https://secure.echosign.com/api/rest/v2/auth/tokens');
    curl_setopt($ch, CURLOPT_CUSTOMREQUEST, "POST");
    curl_setopt($ch, CURLOPT_POSTFIELDS, json_encode($echoSign->echosign_creds));
    curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
    curl_setopt($ch, CURLOPT_HTTPHEADER, array('Content-Type: application/json'));
    $result = json_decode(curl_exec($ch));    
    curl_close($ch);    
    return $result->accessToken;
  }
  public function get_agreements_get()
  {
    $accessToken = array("Access-Token: ".$this->get_access_token_get());
    $ch = curl_init('https://secure.echosign.com:443/api/rest/v2/agreements');
    curl_setopt($ch, CURLOPT_HEADER, true);
    curl_setopt($ch, CURLOPT_HTTPHEADER, $accessToken);
    curl_setopt($ch, CURLOPT_HEADER, 0);
    curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
    curl_setopt($ch, CURLINFO_HEADER_OUT, true);
    $result = json_decode(curl_exec($ch));
    curl_close($ch);
    $agreements = array(
        "agreementId"   => $result->userAgreementList[0]->agreementId,
        "name"          => $result->userAgreementList[0]->name,
    );    
    return $agreements;
  }
  public function get_form_data_get($headers, $agreements)
  {
    $filepath = APPPATH."files/".$agreements['name']."csv";
    $url = 'https://secure.echosign.com:443/api/rest/v2/agreements/'.$agreements['agreementId'].'/formData';
    $ch = curl_init($url);
    curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, false);
    curl_setopt($ch, CURLOPT_HTTPHEADER, $headers);    
    curl_setopt($ch, CURLOPT_RETURNTRANSFER, false);    
    //header("Content-type: text/csv");
    //header("Content-Disposition: attachment; filename=".$filepath);
    $result = curl_exec($ch);
    //echo "<pre>"; print_r($result); echo "</pre>"; exit();
    curl_close($ch);
  }
  public function download_file_get()
  {
    $headers = array("Access-Token: ".$this->get_access_token_get());
    $agreements = $this->get_agreements_get();
    $this->get_form_data_get($headers, $agreements);
  }

}
?>

浏览器中的输出只是以这种格式发送表单的RAW数据

"completed","email","role","first","last","title","company","agreementId","firstname","lastname" "2014-11-04 15:55:44","abe.taha@gmail.com","SIGNER","Abe","Taha","Web Developer","","2AAABLblqZhDrvBK47mPKPZW-VSAJKDHASFT42ESlPxOjYphH4C0A5_adasdasda6qnFCy2idJ8*","ABE","TAHA"

我不知道如何将流存储在变量中/甚至以某种方式分解它以将其存储在数据库中。

我尝试使用 php://input 或读取文件和其他选项来读取流，但不了解如何格式化数据